If she had a seizure how did she actually die? Trauma to head, choking, or what would it be?
Diane's death certificate states the cause was SUDEP and there was an inquest, but no criminal investigation at the time. SUDEP is defined as the
sudden, unexpected, witnessed or unwitnessed, non-traumatic, and non-drowning death in patients with epilepsy with or without evidence for a seizure, and excluding documented status epilepticus, in which postmortem examination does not reveal a structural or toxicological cause for death - so the PM didn't show how she died, as far as we know. SUDEP is when someone is believed to have died during or after a seizure where no other cause of death can be found.
What we know:
SUDEP is thought to happen either during or following a seizure, it is possible that it is due to a problem with the person’s heart or breathing during or following the seizure.
On 25th June 2010, Diane lost her life in the garden at her home in Bassingbourn, suddenly and completely unexpected.
SUDEP is thought to be more likely in people with frequent seizures, particularly convulsive seizures, than in people with infrequent seizures.
Diane didn't have frequent seizures.
IS was the only person present.
DCI Jerome Kent and his team of 27 detectives are currently studying toxicology and histology (cell/tissue) tests from Diane’s post-mortem.
They are also looking at statements taken at the time, speaking with her friends and family and checking what medication would have been in the house.
What we don't know:
If Diane had a seizure just before she died.
If Diane was ever diagnosed with epilepsy.
If yes, what was the cause of the epilepsy - symptomatic epilepsy meaning there is a known cause (such as a brain injury) or idiopathic epilepsy meaning that the epilepsy is usually genetic or inherited?
If yes, what diagnostic tool/s was/were used?
If Diane was prescribed and took anti-epileptic drugs?
If yes, did she take them consistently (every day) and around the same time or times each day?
If yes, did the toxicology report show the expected levels of AED's in her system?
If Diane 'fell' to the ground.
If yes, did her body show any visible signs of injury?
Maybe others can add to the 'what we know/don't know' lists.